CN113389597B - Comprehensive utilization system and application method for coal gangue in resource co-associated mining area - Google Patents
Comprehensive utilization system and application method for coal gangue in resource co-associated mining area Download PDFInfo
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- 239000003245 coal Substances 0.000 title claims abstract description 153
- 238000005065 mining Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910052770 Uranium Inorganic materials 0.000 claims abstract description 104
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims abstract description 103
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000002386 leaching Methods 0.000 claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 238000002360 preparation method Methods 0.000 claims abstract description 27
- 238000000605 extraction Methods 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 238000005554 pickling Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 15
- 239000002344 surface layer Substances 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims description 36
- 238000002309 gasification Methods 0.000 claims description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 20
- 238000007569 slipcasting Methods 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 239000010410 layer Substances 0.000 claims description 12
- 206010024796 Logorrhoea Diseases 0.000 claims description 11
- 239000002893 slag Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 3
- 238000011496 digital image analysis Methods 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 110
- 239000002699 waste material Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 235000021110 pickles Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000010878 waste rock Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000001256 tonic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/16—Modification of mine passages or chambers for storage purposes, especially for liquids or gases
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- Mechanical Engineering (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a comprehensive utilization system and an application method of coal gangue in a resource co-associated mining area. The resource associated mining area coal gangue comprehensive utilization system comprises an occurrence mechanism, an operation mechanism, a processing mechanism and an execution mechanism, wherein the occurrence mechanism is provided with a unconsolidated stratum, a uranium reservoir, a working surface layer and an oil-gas reservoir, the operation mechanism is provided with a comprehensive warehouse, a pickling agent preparation tank, an adhesive tank, a uranium tank, an oil-gas pipe, an oil extraction machine, an oil-gas cluster well, a gas extraction pump, a gas transportation pipe, a replenishing well, a gas pipe, a uranium transportation pipe, an underground leaching pipe, a uranium extraction pump, a uranium extraction well and an underground leaching well, the processing mechanism is provided with a coal gangue separator, a coal gangue mixture, a coal gangue gasifier, a II transmission belt, a III transmission belt, a gas driving pipe, a gas driving pump, a gas driving well and a gob-side roadway, and the execution mechanism is provided with a crushed gangue injection machine, a goaf, an I transmission belt, an IV transmission belt, an injection pipe and a support body. The four mechanisms are closely matched, so that the green and efficient utilization of the coal gangue in the resource co-associated mining area is realized.
Description
Technical Field
The invention relates to a comprehensive utilization system and an application method of coal gangue in a resource-associated mining area.
Background
Coal is a main energy source in China, rapid development of economy in China is supported for many years, but coal mining can produce a large amount of solid waste coal gangue, the stacking of the coal gangue can bury and destroy original topographic vegetation, a large amount of dust can be formed in the discharging process, toxic substances influencing plant survival can be formed during spontaneous combustion, and serious harm is caused to living environments of nearby residents and natural environments of mining areas. The Oridosi coal mine is one of the largest coal mines in China, hundreds of millions of waste coal gangues are accumulated, a large number of associated resources such as coal, oil, unconventional natural gas and uranium mines are found near the Oridosi coal mine, the resources are superposed, and how to reasonably coordinate and develop the coal gangue is difficult. Based on the situation, a comprehensive utilization system and an application method of coal gangue in a resource co-associated mining area are urgently needed to achieve the purpose of resource utilization of the coal gangue and realize green coordinated exploitation of coal and co-associated resources thereof and efficient utilization of waste coal gangue resources.
Disclosure of Invention
The invention aims to provide a comprehensive utilization system of coal gangue in a resource-sharing associated mining area, which is based on a planning operation mechanism, utilizes a gob-side roadway space to construct a processing mechanism and an executing mechanism, develops resource utilization of waste gangue and simultaneously extracts gas resources left in the mining area, carries out green and reasonable development of the coal-uranium-oil-sharing associated mining area, utilizes the processing mechanism to fully exert the functions of the coal and the gangue, improves the oil-gas exploitation rate and reduces the mining cost of uranium mine, solves the problems that a large amount of space is occupied by accumulation of the waste gangue, harmful gas is released to pollute the environment and the like, is matched with the executing mechanism to construct a support body to form a usable space in the mining area, and finally realizes green and coordinated mining of the coal and the co-associated resources and efficient utilization of the waste gangue resources. In order to realize the purpose, the invention adopts the following technical scheme:
a comprehensive utilization system for coal gangue in a resource co-associated mining area comprises:
the occurrence mechanism comprises a unconsolidated formation, a uranium reservoir, a working surface layer and an oil and gas reservoir; the operation mechanism comprises a comprehensive warehouse, a pickling agent preparation tank, a binder tank, a uranium tank, an oil-gas pipe, an oil production machine, an oil-gas cluster well, a gas pumping pump, a gas conveying pipe, a repairing well, a gas conveying pipe, a uranium conveying pipe, an underground leaching pipe, a uranium pumping pump, a uranium pumping well and an underground leaching well; the processing mechanism comprises a coal gangue separator, a coal mining body, a coal gangue mixture, a coal gangue gasification furnace, a II transmission belt, a III transmission belt, an air driving pipe, an air driving pump, an air driving well and a gob-side roadway; the actuating mechanism comprises a crushed gangue grouting machine, a goaf, an I conveying belt, an IV conveying belt, a grouting pipe and a supporting body. The unconsolidated formation is positioned on the upper part of the uranium reservoir, the uranium reservoir is positioned on the upper part of the working surface layer, the working surface layer is positioned on the upper part of the oil and gas reservoir, the comprehensive warehouse, the pickling agent preparation tank, the adhesive tank, the uranium tank, the oil production machine and the gas pumping pump are arranged on the upper part of the ground surface, the uranium pumping well is connected with the uranium tank through the uranium pumping pump and the uranium conveying pipe, the ground leaching well is connected with the pickling agent preparation tank through the ground leaching pipe, the uranium pumping well and the ground leaching well are positioned between the unconsolidated formation and the uranium reservoir, the supplement well is positioned between the unconsolidated formation and the working surface layer, the upper end of the supplement well is connected with the adhesive tank, the lower end of the supplement well is connected with the crushed gangue injection machine, the gas pumping well is positioned between the unconsolidated formation and the working surface layer and is connected with the comprehensive warehouse through the gas pumping pump and the gas conveying pipe, and the oil production machine is connected with the comprehensive warehouse through the oil and gas pipe, the oil gas cluster well is located unconsolidated formation with between the oil gas reservoir, the coal mining body, coal gangue mixture body, coal gangue sorter, intelligent coal gangue gasification furnace, gas drive pump, II transmission band, III transmission band, gob side entry are located in the working surface layer, the coal gangue mixture body passes through the coal mining body with the coal gangue sorter links to each other, the coal gangue sorter pass through I transmission band, III transmission band respectively with garrulous waste rock slip casting machine, intelligent coal gangue gasification furnace are connected, the II transmission band with the coal gangue sorter links to each other, the gas drive well is located between working surface layer and the oil gas reservoir and through the gas drive pump with the coal gangue gasifier is connected, garrulous waste rock slip casting machine, slip casting pipe, goaf, supporter, I transmission band, IV transmission band are located in the working surface layer, the I transmission band pass through the IV transmission band with intelligent coal gasification furnace links to each other, the crushed gangue grouting machine is connected with the supporting body through the grouting pipe, and the supporting body is located on the side face of the goaf.
Preferably, the comprehensive warehouse is respectively connected with the oil-gas pipe and the gas transportation pipe and is provided with an intelligent monitoring and internet of things system.
Preferably, the uranium pot and the pickling agent preparation pot are connected with the uranium pumping well and the ground leaching well through the ground leaching pipe and the uranium pumping pump respectively, wherein the pickling agent preparation pot is made of a high-strength corrosion-resistant material, and the uranium pot is made of a special material.
Preferably, the coal gangue separator is connected with the coal gangue mixture through the coal mining body, respectively connected with the crushed gangue grouting machine and the intelligent coal gangue gasification furnace through an I transmission belt and an III transmission belt, connected with the II transmission belt, and simultaneously provided with an X-ray high-precision imaging system and a high-level computer image analysis system.
Preferably, the coal gangue gasification furnace is respectively connected with the gas drive well and the acid leaching agent preparation tank through the gas drive pump and the gas pipe.
Preferably, the crushed gangue grouting machine is connected with the adhesive tank through a mending well and is connected with the supporting body through a grouting pipe.
The invention also provides an application method of the comprehensive utilization system of the coal gangue in the resource co-associated mining area, and the application method comprises the following working steps:
a. according to engineering exploration conditions, sequentially arranging an integrated library, a pickling agent preparation tank, a binder tank, a uranium tank, an oil-gas pipe, an oil production machine, an oil-gas cluster well, a gas pumping pump, a gas conveying pipe, an underground leaching pipe, a uranium pumping pump, a uranium pumping well, a uranium conveying pipe and an underground leaching well;
b. A coal gangue separator, a coal gangue gasification furnace, a crushed gangue grouting machine, a I transmission belt, a II transmission belt, a III transmission belt, an IV transmission belt, a gas drive pump, a gas drive pipe, a gas drive well and a grouting pipe are sequentially arranged in the gob through a gob-side roadway;
c. when the processing mechanism starts to operate, the operation mechanism synchronously operates, the oil extraction machine starts oil gas extraction, the coal mining body continuously conveys coal and gangue mixture to the coal and gangue separator, all levels of coal, coal gangue and the like separated by the separator are conveyed to each processing device through a conveying belt, wherein clean coal is conveyed away through a II conveying belt, the mixture of the coal and high-calorific value gangue is conveyed to a coal and gangue gasification furnace through a III conveying belt to be gasified and separated to obtain CO2Gas is used for displacing the oil and gas reservoir through a gas drive pump and a gas drive well, oil and gas resources rise along with the oil and gas cluster well and are conveyed to a comprehensive warehouse through an oil and gas pipe for storage, wherein the comprehensive warehouse is provided with an intelligent monitoring and Internet of things system, so that the efficient operation of a ground transportation system can be ensured;
d. SO separated by gasification of coal gangue gasification furnace2The gas enters the ground acid-leaching agent preparation tank along with the gas delivery pipe to synthesize the acid-leaching agent, and then the acid-leaching agent is obtainedThe method comprises the steps that an underground leaching pipe is injected into a uranium reservoir to leach and mine uranium ores, and finally, a uranium-rich solution rises to the ground surface along with a uranium pumping well after being pumped by a uranium pumping pump and is conveyed and stored in a uranium tank through a uranium conveying pipe, wherein a pickling agent preparation tank is made of a high-strength corrosion-resistant material and used for preparing and storing a strong acid leaching solution, the uranium tank is made of a special material, and the acid leaching tank can resist strong acid and can also isolate radiation at the same time, so that the life safety of mine workers is guaranteed;
e. The upper part of the crushed gangue grouting machine receives an adhesive flowing into a replenishing well, the lower part of the crushed gangue grouting machine receives low-calorific-value gangue conveyed by an I conveying belt from a gangue sorting machine and gasifier slag conveyed by an IV conveying belt, the crushed gangue and the gasifier slag are mixed to prepare an environment-friendly filling material, a filling support body is constructed through the grouting pipe, a goaf is guaranteed not to collapse, residual gas resources are continuously accumulated in the goaf, the residual gas resources are extracted by a gas pump and rise to the ground surface along with a gas pumping well, and then the residual gas resources are conveyed to a comprehensive warehouse through a gas conveying pipe to be stored;
f. and (4) repeating the steps a-e under different mining procedures of coal, uranium and oil gas.
The invention has the following advantages:
the invention relates to a comprehensive utilization system of coal gangue in a resource-sharing associated mining area, which is provided with an occurrence mechanism, an operation mechanism and an execution mechanism, wherein the occurrence mechanism, the operation mechanism and an underground treatment mechanism are arranged according to the characteristics of the occurrence mechanism, the operation mechanism for coal, uranium and oil gas and an underground treatment mechanism are used for storing underground sorted clean coal and oil gas resources into a comprehensive warehouse, sulfur dioxide gas separated by coal and high-heat value gangue mixture in gasification of a coal gangue gasification furnace is used for conveying the separated sulfur dioxide gas to a pickle preparation warehouse for preparing pickle, leached uranium-rich solution is stored into a uranium tank, simultaneously the gasified and separated carbon dioxide gas is used for displacing oil gas in an oil gas reservoir layer, an intelligent execution mechanism is constructed, the upper part of the intelligent execution mechanism receives a binding agent flowing into a well, the lower part of the intelligent execution mechanism receives low-supplement gangue and furnace slag from the treatment mechanism, the goaf is timely filled, meanwhile, gas resources are accumulated by using a goaf space and extracted to the earth surface, the green coordinated exploitation of coal, uranium and oil gas resources and the efficient utilization of waste coal gangue resources are realized.
Drawings
A more complete appreciation of this invention, and many of the attendant advantages thereof, will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein the accompanying drawings are included to provide a further understanding of the invention and form a part of this specification, and wherein:
FIG. 1 is an overall state diagram in an embodiment of the present invention.
In the figure: 1-unconsolidated formation; a 2-uranium reservoir; 3-working surface layer; 4-oil and gas reservoir; 5-comprehensive library; 6-oil extraction machine; 7-oil and gas pipe; 8-a gas pump; 9-pickle liquor preparation tank; 10-adhesive pot; 11-a uranium pot; 12-a uranium pump; 13-a uranium conveying pipe; 14-a uranium extraction well; 15-ground dipping well; 16-a tonic well; 17-crushed gangue grouting machine; 18-a coal gangue separator; 19-gas extraction well; 20-a coal gangue gasification furnace; 21-I conveying belt; 22-II a transfer belt; 23-III conveyor belt; 24-a gas-driven pump; 25-gas transmission pipe; 26-oil and gas cluster well; 27-grouting pipe; 28-gas transport pipe; 29-a support; 30-gob side roadway; 31-a goaf; 32-gas drive well; 33-gas drive pipe; 34-coal and gangue mixture; 35-IV transfer belt; 36-coal mining; 37-ground immersion tube.
Detailed Description
With reference to fig. 1, a resource associated mining area coal gangue comprehensive utilization system comprises an occurrence mechanism, an operation mechanism, a processing mechanism and an execution mechanism, wherein the processing mechanism and the execution mechanism are constructed by planning the operation mechanism based on characteristics of the occurrence mechanism, so that resource utilization of waste coal gangue is carried out, and meanwhile, gas resources left over in a goaf are extracted, and green coordinated mining of coal, uranium and oil gas resources and effective utilization of the coal gangue are realized.
In the occurrence mechanism, unconsolidated formation 1 is located on 2 upper portions of uranium reservoirs, uranium reservoirs 2 are located on 3 upper portions of working surface layers, and 3 upper portions of oil and gas reservoirs are located on the working surface layers.
In the operation mechanism, the comprehensive warehouse 5, the acid leaching agent preparation tank 9, the adhesive tank 10, the uranium tank 11, the oil extraction machine 6 and the gas pump 8 are arranged on the upper part of the unconsolidated formation 1, the uranium pumping well 14 is connected with a uranium tank 11 through the uranium pumping pump 12 and a uranium conveying pipe 13, the ground leaching well 15 is connected with a pickling agent preparation tank 9 through a ground leaching pipe 37, the uranium pumping well 14 and the ground leaching well 15 are positioned between the unconsolidated formation 1 and the uranium reservoir 2, the replenishment well 16 is positioned between the unconsolidated formation 1 and the working surface layer 3, the upper end of the replenishment well is connected with the adhesive tank 10, the lower end of the replenishment well is connected with the crushed gangue grouting machine 17, the gas extraction well 19 is positioned between the unconsolidated formation 1 and the working face layer 3 and is connected with the comprehensive warehouse 5 through the gas extraction pump 8 and the gas transportation pipe 28, the oil production machine 6 is connected with the comprehensive reservoir 5 through the oil and gas pipe 7, and the oil and gas cluster well 26 is positioned between the unconsolidated formation 1 and the oil and gas reservoir 4.
In the processing agency, adopt the coal body 36, the coal gangue mixture 34, coal gangue sorter 18, coal gangue gasifier 20, air drive pump 24, II transmission band 22, III transmission band 23, gob entry 30 are located in the working face layer 3, the coal gangue mixture 34 passes through adopt the coal body 36 with coal gangue sorter 18 links to each other, coal gangue sorter 18 pass through I transmission band 21, III transmission band 23 respectively with garrulous waste grouting machine 17, coal gangue gasifier 20 are connected, II transmission band 22 with coal gangue sorter 18 links to each other, air drive well 32 is located working face layer 3 with between the oil and gas reservoir 4 and through air drive pump 24 with coal gangue gasifier 20 connects.
In the actuating mechanism, garrulous cash slip casting machine 17, slip casting pipe 27, collecting space area 31, supporter 29, I transmission band 21, IV transmission band 35 are located in the working face layer 3, I transmission band 21 passes through IV transmission band 35 with the coal gangue gasification furnace 20 links to each other, garrulous cash slip casting machine 17 passes through slip casting pipe 27 with supporter 29 links to each other, supporter 29 is located collecting space area 31 side.
Referring to fig. 1, firstly determining the position and size of the transport mechanism and the corresponding coal gangue comprehensive utilization process according to requirements, continuously conveying coal mining body 36 to the coal gangue separator 18 to obtain a coal gangue mixture 34, conveying the coal and coal gangue separated by the coal gangue separator 18 to each treatment device through a conveying belt, wherein the clean coal is conveyed away through a II conveying belt 22, and the low-calorific-value coal and high-calorific-value coal gangue mixture is conveyed to the coal gangue gasification furnace 20 through a III conveying belt 23 to be gasified and separated to obtain CO 2Gas, then through the gas-driven pump 24 and the gas-driven well 32 pairDisplacing and separating SO from oil and gas reservoir 42The gas enters a ground acid-leaching agent preparation tank 9 along with a gas conveying pipe 25 to synthesize acid-leaching agent, and then is injected into a uranium reservoir 2 through a ground leaching pipe 37 to leach and mine uranium ore, the upper part of a crushed gangue grouting machine 17 receives adhesive flowing in from a replenishing well 16, the lower part of the crushed gangue grouting machine receives low-calorific-value gangue conveyed by an I conveying belt 21 from a gangue separator 18 and gasifier slag conveyed by an IV conveying belt 35, the adhesive is mixed after the gangue is crushed inside the crushed gangue to prepare environment-friendly filling material, a support body 29 is constructed through the grouting pipe 27 to ensure that a goaf cannot collapse, and residual gas resources are continuously accumulated in the goaf and are extracted by a gas pump 8 to rise to the ground surface along with a gas extraction well 19.
The method comprises the following specific steps:
a. according to the engineering exploration condition, a comprehensive warehouse 5, a pickling agent preparation tank 9, an adhesive tank 10, a uranium tank 11, an oil-gas pipe 7, an oil extraction machine 6, an oil-gas cluster well 26, a gas pumping well 19, a gas pumping pump 8, a gas conveying pipe 28, a gas conveying pipe 25, an underground leaching pipe 37, a uranium pumping pump 12, a uranium pumping well 14, a uranium conveying pipe 13 and an underground leaching well 15 are sequentially arranged;
b. a coal gangue separator 18, a coal gangue gasification furnace 20, a crushed gangue grouting machine 17, an I conveying belt 21, an II conveying belt 22, an III conveying belt 23, an IV conveying belt 35, an air driving pump 24, an air driving pipe 33, an air driving well 32 and a grouting pipe 27 are sequentially arranged in the gob 31 through a gob-side roadway 30;
c. When the processing mechanism starts to operate, the operation mechanism synchronously operates, the oil extraction machine 6 starts oil gas extraction, the coal extraction body 36 continuously conveys coal and gangue mixture 34 to the coal and gangue separator 18, all levels of coal, coal gangue and the like separated by the separator are conveyed to each processing device through a conveying belt, wherein clean coal is conveyed away through a II conveying belt 22, the mixture of low-calorific-value coal and high-calorific-value gangue is conveyed to the coal and gangue gasification furnace 20 through a III conveying belt 23 to be gasified and separated to obtain CO2Gas is displaced from the oil and gas reservoir 4 through the gas drive pump 24 and the gas drive well 32, oil and gas resources rise along with the oil and gas cluster well 26 and are conveyed to the comprehensive warehouse 5 through the oil and gas pipe 7 to be stored, wherein the comprehensive warehouse 5 is provided with an intelligent monitoring and internet of things system, and the efficient operation of a ground transportation system can be guaranteed;
d. SO separated by gasification of coal gangue gasification furnace 202Gas enters a ground acid-leaching agent preparation tank 9 along with a gas conveying pipe 25 to synthesize acid-leaching agent, and then is injected into a uranium reservoir 2 through a ground leaching pipe 37 to leach and mine uranium ore, and finally, a uranium-rich solution is pumped by a uranium pumping pump 12 and rises to the ground along with a uranium pumping well 14, and is conveyed and stored in a uranium tank 11 through a uranium conveying pipe 13, wherein the acid-leaching agent preparation tank 9 is made of a high-strength corrosion-resistant material and is used for preparing and storing a strong acid leaching solution, the uranium tank 11 is made of a special material, and the acid-leaching agent is resistant to strong acid and can also isolate radiation at the same time, so that the life safety of mine workers is guaranteed;
e. The upper part of the crushed gangue grouting machine 17 receives an adhesive flowing into a replenishing well 16, the lower part of the crushed gangue grouting machine receives low-calorific-value gangue conveyed by an I conveying belt 21 from a gangue separator 18 and gasifier slag conveyed by an IV conveying belt 35, the crushed gangue and the gasifier slag are internally mixed with the adhesive to prepare an environment-friendly filling material, a filling support body 29 is constructed through the grouting pipe 27 to ensure that a goaf cannot collapse, residual gas resources are continuously accumulated in the goaf, the crushed gangue and the gasifier slag are extracted by a gas extraction pump 8 and ascend to the ground along with a gas extraction well 19, and then the crushed gangue and the gasifier slag are conveyed to a comprehensive warehouse 5 through a gas conveying pipe 28 to be stored;
f. and (4) repeating the steps a-e under different mining procedures of coal, uranium and oil gas.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. A resource is associated mining area gangue comprehensive utilization system altogether, its characterized in that: the comprehensive utilization system of the coal gangue in the resource co-associated mining area comprises:
The occurrence mechanism comprises a unconsolidated formation, a uranium reservoir, a working surface layer and an oil and gas reservoir; the operation mechanism comprises a comprehensive warehouse, a pickling agent preparation tank, an adhesive tank, a uranium tank, an oil and gas pipe, an oil production machine, an oil and gas cluster well, a gas pumping pump, a gas conveying pipe, a repairing well, a gas conveying pipe, a uranium conveying pipe, an underground leaching pipe, a uranium pumping pump, a uranium pumping well and an underground leaching well; the processing mechanism comprises a coal gangue separator, a coal mining body, a coal gangue mixture, a coal gangue gasification furnace, a II transmission belt, a III transmission belt, an air driving pipe, an air driving pump, an air driving well and a gob-side roadway; actuating mechanism, including garrulous cash slip casting machine, collecting space area, I transmission band, IV transmission band, slip casting pipe, supporter, unconsolidated formation is located uranium reservoir upper portion, uranium reservoir is located working face layer upper portion, working face layer is located oil gas reservoir upper portion, comprehensive storehouse, pickling agent preparation jar, adhesive jar, uranium jar, oil production machine, gas pump arrange in unconsolidated formation upper portion, it passes through to take out the uranium pump and defeated uranium pipe and link to each other with the uranium jar to take out the uranium well, ground soaks the well and is connected with pickling agent preparation jar through ground soaks the pipe, it is located to take out the uranium well and ground soaks the well loose formation and uranium reservoir between, the complement well is located loose formation with between the working face layer, the upper end is connected the adhesive jar, the lower extreme is connected garrulous cash slip casting machine, it is located to take out the gas well loose formation with between the working face layer and through take out the gas pump and the gas is transported the pipe and is connected with comprehensive storehouse, the oil extraction machine passes through the oil gas pipe links to each other with comprehensive storehouse, the oil gas cluster well is located unconsolidated formation with between the oil gas reservoir, the coal mining body, the coal gangue mixture body, coal gangue sorter, coal gangue gasifier, air drive pump, II transmission band, III transmission band, gob entry are located in the working face layer, the coal gangue mixture body passes through the coal mining body with the coal gangue sorter links to each other, the coal gangue sorter passes through I transmission band with the garrulous cash slip casting machine is connected, III transmission band both ends are connected respectively the coal gangue sorter with the coal gangue gasifier, the II transmission band with the coal gangue sorter links to each other, the air drive well is located between working face layer and the oil gas reservoir and passes through the air drive pump with the coal gangue gasifier is connected, garrulous cash grouting machine, slip casting pipe, goaf, supporter, I transmission band, IV transmission band are located in the working face layer, the I transmission band passes through the IV transmission band with the coal gangue gasifier links to each other, garrulous cash slip casting machine passes through the slip casting pipe with the supporter links to each other, the supporter is located the goaf side.
2. The comprehensive utilization system for coal gangue in resource-associated mining areas according to claim 1, characterized in that: the comprehensive warehouse is respectively connected with the oil-gas pipe and the gas transportation pipe and is provided with an intelligent monitoring and Internet of things system.
3. The comprehensive utilization system for coal gangue in resource-associated mining areas according to claim 1, characterized in that: the uranium jar pass through defeated uranium pipe with the uranium pumping pump with it links to each other to pump the uranium well, the pickling agent preparation jar passes through ground dip pipe with ground dip well links to each other, and wherein pickling agent preparation jar comprises the corrosion-resistant material that excels in, and wherein the uranium jar comprises special material.
4. The comprehensive utilization system for coal gangue in resource-associated mining areas according to claim 1, characterized in that: the coal gangue separator passes through the coal mining body with the coal gangue mixture links to each other, through I transmission band with garrulous cash slip casting machine connects, is connected with the coal gangue gasifier through the III transmission band, and with the II transmission band links to each other, is equipped with X ray high accuracy imaging system and high-level computer image analysis system simultaneously.
5. The comprehensive utilization system for coal gangue in resource-associated mining areas according to claim 1, characterized in that: the coal gangue gasification furnace is connected with the gas drive well through the gas drive pump and the gas drive pipe, and the coal gangue gasification furnace is connected with the acid leaching agent preparation tank through the gas delivery pipe.
6. The comprehensive utilization system for coal gangue in resource-associated mining areas according to claim 1, characterized in that: the crushed gangue grouting machine is connected with the adhesive tank through a mending well and is connected with the supporting body through a grouting pipe.
7. An application method of the comprehensive utilization system for coal gangue in a resource-associated mining area is characterized in that the comprehensive utilization system for coal gangue in the resource-associated mining area according to any one of claims 1 to 6 is adopted, and the application method comprises the following steps:
a. according to the engineering exploration condition, sequentially arranging a comprehensive library, a pickling agent preparation tank, an adhesive tank, a uranium tank, an oil and gas pipe, an oil production machine, an oil and gas cluster well, a gas pumping pump, a gas conveying pipe, an underground leaching pipe, a uranium pumping pump, a uranium pumping well, a uranium conveying pipe and an underground leaching well;
b. a coal gangue separator, a coal gangue gasification furnace, a crushed gangue grouting machine, an I transmission belt, an II transmission belt, an III transmission belt, an IV transmission belt, an air drive pump, an air drive pipe, an air drive well and a grouting pipe are sequentially arranged in the goaf through a gob-side roadway;
c. the processing mechanism starts to operate, the operation mechanism synchronously operates, the oil extraction machine starts oil gas extraction, the coal mining body continuously conveys coal and gangue mixture to the coal and gangue separator, all levels of coal and gangue separated by the separator are conveyed to each processing device through a conveying belt, wherein clean coal is conveyed away through a II conveying belt, the mixture of coal and high-calorific value gangue is conveyed to a coal and gangue gasification furnace through a III conveying belt to be gasified and separated to obtain CO 2Gas is used for displacing the oil-gas reservoir through the gas-driven pump and the gas-driven well, oil-gas resources rise along with the oil-gas cluster well and are conveyed to the comprehensive warehouse through the oil-gas pipe for storage, and the comprehensive warehouse is provided with an intelligent monitoring and Internet-of-things system, so that the efficient operation of a ground transportation system can be guaranteed;
d. SO separated by gasification of coal gangue gasification furnace2Gas enters a ground acid leaching agent preparation tank along with a gas conveying pipe to synthesize a acid leaching agent, the acid leaching agent is injected into a uranium reservoir through a ground leaching pipe to leach and mine uranium ore, and finally, a uranium-rich solution is pumped by a uranium pumping pump to rise to the ground along with a uranium pumping well and is conveyed and stored in a uranium tank through a uranium conveying pipe, wherein the acid leaching agent preparation tank is made of a high-strength corrosion-resistant material and used for preparing and storing a strong acid leaching solution, the uranium tank is made of a special material, the strong acid resistance and the radiation insulation can be realized, and the life safety of mine workers can be guaranteed;
e. the upper part of the crushed gangue grouting machine receives an adhesive flowing into a replenishing well, the lower part of the crushed gangue grouting machine receives low-calorific-value gangue conveyed by an I conveying belt from a gangue sorting machine and gasifier slag conveyed by an IV conveying belt, the crushed gangue and the gasifier slag are mixed to prepare an environment-friendly filling material, a filling support body is constructed through the grouting pipe, a goaf is guaranteed not to collapse, residual gas resources are continuously accumulated in the goaf, the residual gas resources are extracted by a gas pump and rise to the ground surface along with a gas pumping well, and then the residual gas resources are conveyed to a comprehensive warehouse through a gas conveying pipe to be stored;
f. And (4) repeating the steps a-e under different mining procedures of coal, uranium and oil gas.
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| PCT/CN2022/107943 WO2023005931A1 (en) | 2021-07-29 | 2022-07-26 | Coal gangue comprehensive utilization system for associated-resource mining area, and application method for system |
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| JPH0525986A (en) * | 1991-07-19 | 1993-02-02 | Nkk Corp | Method and apparatus for collecting natural gas utilizing disused carbon dioxide as heat source |
| US5265941A (en) * | 1992-08-20 | 1993-11-30 | Tamrock World Corporation, N.V. | Underground mining system and method for developing longwall panel |
| RU2247834C1 (en) * | 2003-09-04 | 2005-03-10 | Открытое акционерное общество "Приаргунское производственное горно-химическое объединение" | Method for extraction of uranium ores, lying in stable rocks, by underground lixiviation in chambers |
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